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   pam_wheel    ( 8 )

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Имя (Name)

pam_wheel - Only permit root access to members of group wheel

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Синопсис (Synopsis)

pam_wheel.so [debug] [deny] [group=name] [root_only] [trust] [use_uid]

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Описание (Description)

The pam_wheel PAM module is used to enforce the so-called wheel group. By default it permits root access to the system if the applicant user is a member of the wheel group. If no group with this name exist, the module is using the group with the group-ID 0.

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Параметры (Options)

debug
           Print debug information.

       deny
           Reverse the sense of the auth operation: if the user is
           trying to get UID 0 access and is a member of the wheel group
           (or the group of the group option), deny access. Conversely,
           if the user is not in the group, return PAM_IGNORE (unless
           trust was also specified, in which case we return
           PAM_SUCCESS).

       group=name
           Instead of checking the wheel or GID 0 groups, use the name
           group to perform the authentication.

       root_only
           The check for wheel membership is done only when the target
           user UID is 0.

       trust
           The pam_wheel module will return PAM_SUCCESS instead of
           PAM_IGNORE if the user is a member of the wheel group (thus
           with a little play stacking the modules the wheel members may
           be able to su to root without being prompted for a passwd).

       use_uid
           The check for wheel membership will be done against the
           current uid instead of the original one (useful when jumping
           with su from one account to another for example).

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Предоставляемые типы модулей (Module types provided)

The auth and account module types are provided.

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Возвращаемое значение (Return value)

PAM_AUTH_ERR Authentication failure.

PAM_BUF_ERR Memory buffer error.

PAM_IGNORE The return value should be ignored by PAM dispatch.

PAM_PERM_DENY Permission denied.

PAM_SERVICE_ERR Cannot determine the user name.

PAM_SUCCESS Success.

PAM_USER_UNKNOWN User not known.

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Примеры (Examples)

The root account gains access by default (rootok), only wheel
       members can become root (wheel) but Unix authenticate non-root
       applicants.

           su      auth     sufficient     pam_rootok.so
           su      auth     required       pam_wheel.so
           su      auth     required       pam_unix.so

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Смотри также (See also)

pam.conf(5), pam.d(5), pam(8)

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